Quality control at a factory that produces light bulbs found that 2% of the bulbs produced are defective. If 31 bulbs are randomly selected , find the following probabilities:

a) The probability the exactly 2 bulbs are defective. Express your answer in decimal form correct to 4 decimal places

b) The probability that 2 or more bulbs are defective. Express your answer in decimal form correct to 4 decimal places